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300 Blackout Kits

PSA is your headquarters for ordering high-quality 300 blackout build kits and lower parts kits for your build. We have what every armorer needs to complete an AR-15 build with confidence. Our kits are tried and true and designed to beat the standard and be the standard. Be sure to also check out our selection of 300 blackout ammo. 

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Items 1-24 of 115

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  1. Palmetto State Armory Magpul AR-15 Lower Build Kit in Black

    Palmetto State Armory Magpul MOE Lower Build Kit, Black

    Rating:
    94%
    (2136)
    Regular Price $219.99 Special Price $99.99
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  2. Premium Classic AR-15 Lower Build Kit in black

    Palmetto State Armory Premium Classic Lower Build Kit

    Rating:
    92%
    (250)
    Regular Price $199.99 Special Price $89.99
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  3. PSA AR15 MOE 3.5lb Single Stage CMC Lower Build Kit, Black

    PSA AR15 MOE 3.5lb Single Stage CMC Lower Build Kit, Black

    Rating:
    90%
    (94)
    Regular Price $349.99 Special Price $199.99
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  4. Magpul MOE EPT AR-15 Lower Build Kit in Flat Dark Earth

    Palmetto State Armory Magpul MOE EPT Lower Build Kit - Flat Dark Earth

    Rating:
    94%
    (198)
    Regular Price $234.99 Special Price $109.99
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  5. PSA EPT MOE AR-15 Lower Build Kit

    PSA MOE EPT Lower Build Kit, Black

    Rating:
    94%
    (348)
    Regular Price $234.99 Special Price $119.99
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  6. MOE AR-15 lower build kit in black

    PSA AR-15 MOE+ Lower Build Kit - Black

    Rating:
    94%
    (187)
    Regular Price $224.99 Special Price $129.99
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  7. Classic Gray AR-15 lower build kit

    PSA Classic Lower Build Kit, Gray - 5165449782

    Rating:
    97%
    (31)
    Regular Price $199.99 Special Price $79.99
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  8. AR-15 Lower Build Kit in Flat Dark Earth

    PSA Classic Lower Build Kit, Flat Dark Earth - 5165449781

    Rating:
    93%
    (64)
    Regular Price $209.99 Special Price $79.99
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  9. Classic AR-15 lower build kit in olive drab green

    PSA Classic Lower Build Kit, OD Green

    Rating:
    92%
    (78)
    Regular Price $199.99 Special Price $79.99
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  10. ACS-L EPT AR-15 lower build kit

    Palmetto State Armory MOE ACS-L EPT Lower Build Kit Black

    Rating:
    95%
    (44)
    Regular Price $279.99 Special Price $149.99
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  11. Magpul CTR EPT AR-15 Lower Build Kit

    Palmetto State Armory Magpul CTR EPT Lower Build Kit - Black

    Rating:
    96%
    (62)
    Regular Price $209.99 Special Price $129.99
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  12. MOE SBA3 Pistol Brace AR-15 Lower Build Kit

    PSA AR-15 MOE SBA3 Lower Build Kit - Flat Dark Earth

    Rating:
    95%
    (178)
    Regular Price $259.99 Special Price $169.99
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  13. Classic EPT AR-15 lower build kit

    PSA EPT Classic Lower Build Kit - 7780747

    Rating:
    89%
    (28)
    Regular Price $209.99 Special Price $109.99
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  14. palmetto state armory magpul moe lower build kit flat dark earth

    Palmetto State Armory Magpul MOE Lower Build Kit - Flat Dark Earth

    Rating:
    94%
    (120)
    Regular Price $204.99 Special Price $99.99
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  15. PSA AR-15 Lower Build Kit with Fire Control Group

    PSA AR15 MOE Lower Build Kit without Fire Control Group, Black

    Rating:
    92%
    (52)
    Regular Price $179.99 Special Price $89.99
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  16. AR-15 lower build kit without fire control group

    Palmetto State Armory Classic Lower Build Kit - without Fire Control Group - 445

    Rating:
    94%
    (61)
    $79.99
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  17. PSA MOE Lower Parts Kit, Gray

    PSA MOE Lower Parts Kit, Gray

    Rating:
    86%
    (7)
    Regular Price $64.99 Special Price $49.99
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  18. AR-15 pistol lower build kit in black

    Palmetto State Armory MOE Pistol Lower Build Kit, Black

    Rating:
    89%
    (47)
    Regular Price $169.99 Special Price $89.99
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  19. Magpul AR-15 lower build kit without FCG

    PSA MOE ACS-L Lower Build Kit w/out FCG - Black

    Rating:
    97%
    (30)
    Regular Price $219.99 Special Price $149.99
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  20. ar 15 Pistol lower build kit

    Palmetto State Armory Pistol Lower Build Kit - Black - 39630

    Rating:
    89%
    (52)
    Regular Price $189.99 Special Price $89.99
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  21. STR AR-15 lower build kit black

    Palmetto State Armory Magpul STR Lower Build Kit - Black

    Rating:
    98%
    (42)
    Regular Price $279.99 Special Price $169.99
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  22. PSA 7" 300AAC 1/7 Phosphate 6" M-Lok MFT EPT Battlelink Pistol Kit

    PSA 7" 300AAC 1/7 Phosphate 6" M-Lok MFT EPT Battlelink Pistol Kit

    Rating:
    80%
    (7)
    Regular Price $649.99 Special Price $409.99
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  23. OD Green AR-15 lower build kit

    Palmetto State Armory Magpul ACS-L Lower Build Kit - OD Green

    Rating:
    98%
    (16)
    Regular Price $249.99 Special Price $169.99
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  24. PSA Classic Lower Parts Kit, FDE

    PSA Classic Lower Parts Kit, FDE

    Rating:
    80%
    (2)
    Regular Price $54.99 Special Price $44.99
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Items 1-24 of 115

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  1. Federal .308 168GR Ammo
    Federal 308 168gr Sierra MatchKing BTHP Gold Medal Ammunition 20rds - GM308M
    Rating:
    96%
    (180)
    Regular Price $49.99 Special Price $29.99 $1.50
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  2. Vortex Strikefire II Red Dot (4MOA Red/Green Dot) - SF-RG-501
    Vortex Strikefire II Red Dot (4MOA Red/Green Dot) - SF-RG-501
    Rating:
    94%
    (853)
    Regular Price $269.99 Special Price $199.99
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  3. PSA 16" 5.56 NATO 1:7 Midlength Nitride 13.5" Lightweight M-Lok MOE EPT Rifle Kit w/ MBUS Sight Set
    PSA 16" 5.56 NATO 1:7 Midlength Nitride 13.5" Lightweight M-Lok MOE EPT Rifle Kit w/ MBUS Sight Set
    Rating:
    92%
    (225)
    Regular Price $859.99 Special Price $479.99
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  4. PSA 10.5" Carbine-Length 5.56 NATO 1/7 Nitride 12" Slant M-Lok MOE EPT SBA3 Pistol Kit - 5165448807
    PSA 10.5" Carbine-Length 5.56 NATO 1/7 Nitride 12" Slant M-Lok MOE EPT SBA3 Pistol Kit - 5165448807
    Rating:
    94%
    (326)
    Regular Price $899.99 Special Price $499.99
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  5. ar-15 pistol kit
    PSA 10.5" 5.56 NATO 1/7" Nitride MOE EPT Shockwave Pistol Kit, Black - 5165449862
    Rating:
    96%
    (42)
    Regular Price $579.99 Special Price $409.99
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  6. PSAK-47 GF3 Forged "MOEkov" Rifle, Gray
    PSA AK-47 GF3 Forged "MOEkov" Rifle, Gray
    Rating:
    95%
    (112)
    $749.99
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  7. PSA 10.5" Carbine-Length 5.56 NATO 1/7" Nitride Classic SBA4 Pistol Kit
    PSA 10.5" Carbine-Length 5.56 NATO 1/7" Nitride Classic SBA4 Pistol Kit
    Rating:
    93%
    (30)
    Regular Price $719.99 Special Price $419.99
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  8. Ruger EC9s 9mm Pistol, FDE - 3297
    Ruger EC9s 9mm Pistol, FDE - 3297
    Rating:
    100%
    (1)
    Regular Price $399.99 Special Price $269.99
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  9. Springfield Hellcat Micro-Compact 9mm Pistol, FDE
    Springfield Hellcat Micro-Compact 9mm Pistol, FDE - HC9319F
    Rating:
    88%
    (17)
    Regular Price $649.99 Special Price $529.99
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  10. Holosun 507C Open Reflex Sight - HS507C-X2
    Holosun HS507C X2 Red Open Reflex Sight 2MOA/32MOA Circle
    Rating:
    80%
    (7)
    Regular Price $399.99 Special Price $309.99
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  11. JX49221M Beretta Cx4 Storm 9mm Carbine
    Beretta Cx4 Storm 92 9mm PCC Rifle, Blk - JX49221M
    Rating:
    87%
    (3)
    Regular Price $999.99 Special Price $599.99
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  12. Springfield XDM Elite Compact OSP 9mm Pistol, Black
    Springfield XDM Elite Compact OSP 9mm Pistol, Black - XDME9389CBHCOSP
    Rating:
    100%
    (1)
    Regular Price $699.99 Special Price $499.99
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  13. BLEM PSA 16" Mid-length 5.56 NATO 1/7 Phosphate 13.5" Lightweight M-Lok MOE EPT Rifle Kit w/MBUS Sight Set
    BLEM PSA 16" Mid-length 5.56 NATO 1/7 Phosphate 13.5" Lightweight M-Lok MOE EPT Rifle Kit w/MBUS Sight Set
    Regular Price $849.99 Special Price $499.99
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  14. PSA 16" M4 Carbine Length 5.56 NATO 1:7 Nitride Freedom Rifle Kit with Vortex Strikefire II Optic & Rear Mbus
    PSA 16" M4 Carbine Length 5.56 NATO 1:7 Nitride Freedom Rifle Kit with Vortex Strikefire II Optic & Rear Mbus
    Rating:
    96%
    (5)
    Regular Price $749.99 Special Price $489.99
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